Inventor

SCHWERTNER DAVID

US4 patents

⚠️ This page may combine multiple inventors who share the name “SCHWERTNER DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAKER HUGHES INC

3 patents

US7271131B2Sep 18, 2007

Fluid loss control and sealing agent for drilling depleted sand formations

BAKER HUGHES INC61 citations96

US5605879AFeb 25, 1997

Olefin isomers as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluids

BAKER HUGHES INC46 citations94

US7393813B2Jul 1, 2008

Water-based drilling fluids using latex additives

BAKER HUGHES INC8 citations72

(unassigned)

1 patent

US5851958ADec 22, 1998

Olefins and lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluids

45 citations93